Amazon products can be displayed 15 minutes after they are put on the shelves. Different channels have different prices and different routes. For example, how long does it take for Amazon FBA products to be seen on the front desk? For the same ship, the same route and the same FBA warehouse, the price of express delivery is different from the price of truck delivery. Of course, the timeliness is also different. Under normal circumstances, express delivery is constant, but the epidemic in the United States is very serious now. On the contrary, truck transportation should be more reliable and more affordable.